I am looking to get into photography as a hobby, and wanting to upgrade from my current D40 basic kit package (body, 18-55mm). My buddy who is a professional photographer is also looking to upgrade one of his d200's, and offered it to me in a package (D200, batt grip, 18-135mm, 2nd batt, charger) for $750. Would I be better off picking this package up, or should I go for a D90? The specs look similar on the two, for the exception of Live View and better High ISO on the D90.